Malicious Code Detected in Hyatt-UI Package: Version 291.8.0

hyatt-ui Updated 22 Nov 2025

Summary

22/11/2025
CRITICAL
No i
Critical
Not published

MAL-2025-190619: Malicious code in hyatt-ui (npm). Affects hyatt-ui versions 291.8.0. No fix is published. How to fix ↓

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Background

Hyatt-UI is an npm package designed for user interface components, providing developers with reusable UI elements to enhance web applications. However, version 291.8.0 has been flagged for malicious behavior, specifically for communicating with a domain linked to harmful activities, raising significant security concerns for users relying on this package.

Vulnerability Detail

The vulnerability in the Hyatt-UI package stems from its version 291.8.0, which has been identified as malicious by the OpenSSF Package Analysis project. This version exhibits behavior that allows it to communicate with a domain associated with malicious activities, potentially compromising the security of applications that utilize this package. Users of this package may face risks such as data breaches, unauthorized access, and other security threats due to this malicious communication.

How To Fix

This package is malicious. Remove it and rotate any credentials it could have accessed.

npm uninstall hyatt-ui

If it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.

Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →

Workaround

As a temporary measure, you can remove the Hyatt-UI package from your project until a secure version is released. Use the following command to uninstall the package: npm uninstall hyatt-ui. Consider using alternative UI component libraries that are known to be secure.

Conclusion

The Hyatt-UI package version 291.8.0 has been identified as malicious, posing significant security risks to applications that utilize it. Users are advised to update to a secure version or consider alternative libraries to mitigate potential threats. Utilizing tools like Vulert can enhance your ability to monitor and address vulnerabilities in real-time.

See every vulnerability recorded for hyatt-ui →

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FAQ

The vulnerability involves the package communicating with a domain associated with malicious activities, posing security risks.

You can use Vulert, which monitors and alerts for open-source vulnerabilities in real-time. Visit Vulert Scanner to check your application without needing to sign up.

If an immediate update is not possible, consider uninstalling the package and using alternative libraries until a secure version is available.

Vulert uses the package-lock.json file to monitor and alert for vulnerabilities in your software, providing real-time insights.

Yes, continuing to use the vulnerable version may expose your application to security threats, including data breaches and unauthorized access.

How To Fix

This package is malicious. Remove it and rotate any credentials it could have accessed.

npm uninstall hyatt-ui

If it arrived as a transitive dependency, remove the package that pulled it in, then reinstall.

Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →

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